<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="js/vue.js"></script>
</head>
<body>
    <div id="app">
        <h3 v-show="flag">不是吧</h3>
        <h3 v-show="!flag">就是</h3>
    </div>
</body>
<script>
    var vm=new Vue({
        el:"#app",
        data:{
            flag:true
        }
    })
    // v-show和v-if的区别
    // v-show是display:none，然后v-if是删除元素
</script>
</html>